Glazing method and glazing nozzle



Sept. 15, 1959 s. E. HANN GLAZING METHOD AND GLAZING NOZZLE Filed June15, 1956 lHt fl WM MH 5 0 0 d y 6 ATTORNEYS GLAZING METHOD AND GLAZINGNOZZLE Gordon E. Hana, Novelty, Ohio, assignor to The TrenicoManufacturing Company, Cieveland, Ohio, at corporation of OhioApplication June 15, M56, Serial No. 591,685

1 Claim. (Cl. lit-3.5)

This invention relates to improvements in the glazing art and moreparticularly, to a glazing nozzle.

One of the objects of the present invention is to provide a means forapplying mastic glazing material from a bulk supply simultaneously toopposite sides of a window frame bar between adjacent window panes inuniformly contoured shape.

A further object of the present invention is to provide a new andparticularly useful dispensing nozzle for aplying and forming masticglazing material at the intersection of a window pane and a window framebar.

A further object of the present invention is to provide a glazing nozzlewhich is characterized by its structural simplicity, its ease ofoperation, its strong and sturdy nature, its inexpensive manufacturingcost, and its operating efficiency.

Further objects of the present invention and certain of its practicaladvantages, will be referred to in or will be evident from the followingdescription of a glazing nozzle embodying the invention, the nozzlebeing illustrated in the accompanying drawing, in which Fig. 1 is asectional view through a window pane and its associated window frame,and a side elevational view of a mastic material dispenser for applyingand forming mastic glazing material at the intersection of such windowpane and such window frame;

Fig. 2 is an enlarged horizontal sectional view on the line 22 of Fig.1, showing the material dispensing nozzle;

Fig. 3 is a bottom plan view of the nozzle removed from the window frameand on a much larger scale;

Fig. 4 is a transverse sectional view, on the line 4-4 of Fig. 2,showing the window frame bar and the two window frames on opposite sidesthereof, before the glazing material has been applied;

Fig. 5 is a transverse sectional view, on the line 5-5 of Fig. 2, afterthe mastic glazing material has been applied; and

Fig. 6 is a sectional view, similar to Fig. 5, but after a protectivecover has been pressed over the mastic material.

Before the invention here illustrated is specifically described, it isto be understood that the invention here involved is not limited to thestructural details or the arrangement of parts or the method detailshere disclosed, as glazing nozzles embodying the present invention maytake various forms. It also is to be understood that the phraseology orterminology herein employed is for purposes of description and not oflimitation, as the scope of the present invention is denoted by theappended claim.

In the drawings, a portion of a conventional window and window framestructure is shown, with the portion illustrated consisting of one ofthe cross bars 11 of the window frame and two window panes 12 and 14 instraddling and abutting relationship to opposite parallel surfaces llaand 11b of the bar, with the panes 12 and 14 being generally mutuallycoplanar and being perpendicular to the side surfaces 11a, 11b to formcorners therewith atom in the manner shown in Fig. 4. The bar surfaces11a, 11b and the top surface 11c protrude upwardly out of the plane ofthe window panes 12 and 14, as shown in Fig. 4. In the glazingoperation, mastic material, in the form of any suitable caulkingcompound, is pushed into these corners, as in the conventional windowconstruction, to form the completed assembly.

A mastic material dispenser 24 here shown as in the form of a caulkinggun, has a bulk supply of mastic glazing material and is adapted to feedthe material out in a uniform flow. The illustrated dispenser 20 has apivotally mounted trigger 21 for advancing, or moving toward the left inFigs. 1 and 2, an operating piston rod 22 by a pawl and ratchet drive tothereby dispense mastic material in bulk supply from the cylinder 23,the mastic material in such bulk supply being contained, if desired, inan insert cartridge of conventional type.

Mounted on the forward end of the dispenser 20 is a nozzle 39 forapplying and forming the mastic material in straddling relationship onthe window frame bar 11 and the window panes 12 and 14 as such nozzletravels along the bar in the direction of the arrows in Figs. 1 and 2,the glazing material taking the form shown in Fig. 5. As shown in Figs.2 and 3, the nozzle 30 is of channel shape for receiving and slidingalong the bar 11, with a tube 32 brazed or otherwise secured thereto andinclined with respect to the direction of nozzle travel along the bar11. Preferably and as here shown, the upper end of the tube 32 isrigidly but detachably secured to the discharge end of the dispensercylinder 23 by threads or in any other suitable manner. The masticmaterial is thus dispensed outwardly through the front end of cylinder23 and through the open front end of the tube 32, into the interior ofthe channel shaped nozzle 30.

As best shown in Fig. 3, the nozzle 30 has a guide portion 31a and amaterial forming portion 31b spaced rearwardly (toward the left in Fig.3) along the nozzle from said guide portion, with a diverging portion310 smoothly connecting these two portions 31a and 31b. The free edges31d and 31d of the nozzle which extend along the length thereof arecoplanar and adapted to travel along and in contact with the windowpanes 12 and 14 in the manner shown in Figs. 1 and 2, while the nozzleguide portion 31a snugly slides over frame bar 11 during horizontaltravel of the nozzle in the direction of the arrows in Figs. 1 and 2.The interior of the guide portion 31a is smaller in cross section thanthat of the forming portion 31b, although both portions have generallyparallel planar interior surfaces respectively shown as 31e, Sale and 3131 with forming portion surfaces 31 31 being laterally disposed fartherfrom the bar surfaces 11a and 11b than the guide portion surfaces Sle,31c. This provides a suitable space between the forming surfaces 31],31f and top surface 31g and the top and straddling sides 11c, 11a and11b of bar 11 for forming the mastic material into the contour shown inFig. 5, with surfaces 35a, 35b and 35c.

A trailing, inwardly directed lip 31h is provided at the trailing end ofthe nozzle top surface 31g for the purpose of generally flattening thetop portion 35a of the extruded or dispensed mastic material orotherwise preventing such material from bulging at or along said topportion. In addition and as here shown, the lip 31h forms a groove 35din the top surface of the mastic material, as shown in Fig. 5.

If desired, a protective cover, Fig. 6, may be adhesively secured instraddliing relation over the mastic glazing material 35 on the windowpanes 12 and 14 and the intermediate window frame bar 11. Thisprotective cover preferably is of channel form or generally U-shape incross section, and as shown, has a fiat base 38a and generally divergingside walls 38b, 38c.

The mode of operation should be readily apparent. A workman can glazesimultaneously two window panes 12 and 14 abutting in straddlingrelationship a window frame bar 11, as in Fig. 4. Since the nozzle 30 isrigidly secured to the mastic material dispenser 20, the workman can usethe dispenser as a handle for moving the nozzle along its direction oftravel (the direction of the arrows. in Figs. 1 and 2) in the glazingoperation. One hand can be placed on the hand grip and trigger 21 tocontrol the rate of feed of the mastic material from the bulk supply inthe cylinder 23, while the other hand presses downwardly upon theforward end of said cylinder so as to press the nozzle 30, andespecially its lower edges 31d and 31d, firmly into engagement with thetop surfaces. of window panes 12 and 14. As the nozzle moves in thedirection of the arrows in Figs. 1 and 2, the guide portion 31a keepsthe forming. surfaces 31 and 31f equidistant from their respective barsurfaces 11a and 1111 so that the mastic material flowing downwardly outof tube 32, Fig. 1, will be applied simultaneously to all three surfaces11a, 11b and 110 of bar 11 in the form of top surface 35a and sidesurfaces 35b and 35c and thus in a uniformly contoured shape, as shownin Fig. 5. The mastic material thus will be located over the top of thebar and in both corners formed by bar surfaces 11a and 11b and windowpanes 12 and 14. Also, trailing lip 31h of the nozzle will form thedepression 35d in the top surface of the mastic materialnon-complementary with the flat base 38a of the overlying protectivecover. This need not necessarily take the form of a groove but may be ofany non-complementary shape with respect to the cover surface to whichit is to engage. Also, the non-complementary shape may be in any of thethree surfaces of the mastic material (surfaces 35a, 35b or 35c) or inall three surfaces, as shown herein by comparison of the contour of themastic material in Figs. and 6. Also, this trailing lip 31h may causeany excess material to fiow down the side surfaces 35b and 350 if sodesired. This depends, as will be readily understood, upon the relativelocation between lip 31/2 and forming surfaces 31 and 31 Then, theprotective cover, if used, is pressed over the mastic material toprotect the glazing. It will adhesively adhere to the mastic materialfor either or both of two reasons: (1) the tacky nature of the masticmaterial and/or (2) the non-complementary shape of the material withrespect to the cover before the cover is pressed thereon and thedeformable nature of this material. Preferably and as shown, this coverextends all the way down to the top surface of the window panes 12 and14 to pro tect the mastic material from weathering, from erosion andfrom chipping so that it will have a long wear life. Although the masticmaterial may be utilized to hold the protective cover resiliently downin place against the window panes by suction and adhesion, screws arepreferably used for the holding of said protective cover, the screwsbeing anchored, of course, in the underlying cross bar. The cover may beformed of any suitable metal or plastic material providing the desiredfunctions. It should be noted that the sides 38b and 38c of the coverslope downwardly away from the top 38a so that rain water, etc. willquickly run off.

Alternative constructions readily suggest themselves as being within thescope of the present invention. First, non-complementary surface shape35a' in Fig. 5 may take the form of a groove or any other surface shapenoncomplementary with respect to the cover portion with which it engagesand may be located in any one or all of the surfaces 35a, 35b and 350,Fig. 5. Location in surface 35a is preferred, as there will be anequalized adhesion action pulling the cover symmetrically down againstthe window panes 12 and 13. Second, although the invention is disclosedherein for glazing in straddling relationship with respect to a windowframe bar 11, Fig. 5, it should be readily apparent that the principlescould be used in glazing only a single corner formed by the edge of asingle window pane and a window frame member, such as found on one sideof the complete window assembly with the peripheral surface of theglazing material shown by the dotted line A in Fig. 5. This inventionincludes the method of forming such surface A and the nozzle for formingsaid surface. Of course, then in nozzle 30, the surfaces 31a and 31would not be needed and surface 31g may be lowered to contact the topsurface of the window frame member.

Various changes in details and arrangement of nozzle parts can be madeby one skilled in the art without de parting from either the spirit ofthis invention or the scope of the appended claim.

What I claim is:

A nozzle for applying and forming mastic glazing material. in straddlingrelationship to a window frame bar as it travels along said bar, whereinsaid bar has abutting planar window panes With said bar protruding outof said plane, said nozzle being of channel shape for receiving andsliding over said bar, said nozzle having a guide portion adapted tosnugly fit and slide over said bar, a mastic material forming portionspaced rearwardly along the nozzle from said guide portion, a materialfeeding tube in communication with said forming portion and inclinedwith respect to the direction of nozzle travel so that said tube may beused as a handle for moving said nozzle along its direction of travel,said guide portion having generally parallel planar surfaces, and saidforming portion having surfaces disposed laterally outwardly from andabove the surfaces on said guide portion to provide a space for materialforming between said forming surfaces and the top and straddled sides ofsaid bar, said nozzle having a trailing lip for forming a groove in themastic material over said bar most remote from said panes so that aprotective cover applied to said material will be adhesively securedthereto.

References Cited in the file of this patent UNITED STATES PATENTS

